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公开(公告)号：US06414706B1
公开(公告)日：2002-07-02
申请号：US09428246
申请日：1999-10-27
IPC分类号： B41J247
CPC分类号： B41J2/465
摘要： A method of modeling and enhancing the print quality of digital printing, including both electrophographic printing and photofinishing. Pixels are printed with a device such as a DMD, whose pixels provide a steep-sided intensity versus displacement curve of each light spot on the image plane. Holes placed in the pixel can be used to place a dip in the top of the curve, a feature especially useful for electrophotographic printing. The effect of this hole on the image plane can also be flattened, a feature than may be especially useful for photofinishing. The steep-sided intensity curve facilitates the ability to model and predict pixel size.
摘要翻译： 一种建模和增强数字印刷的打印质量的方法，包括电泳印刷和照相洗印加工。 像素用诸如DMD的装置印刷，其像素提供图像平面上每个光点的陡峭侧强度与位移曲线。 放置在像素中的孔可以用于在曲线的顶部浸渍，这是特别适用于电子照相印刷的特征。 该孔对图像平面的影响也可以变平，这对于照相洗印可能特别有用。 陡边强度曲线有助于建模和预测像素大小的能力。
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公开(公告)号：US20110188062A1
公开(公告)日：2011-08-04
申请号：US12696194
申请日：2010-01-29
申请人： James M. Sweet , William E. Nelson
发明人： James M. Sweet , William E. Nelson
摘要： A method and system for predicting expansion difficulty and an expansion time required to perform print-time imaging operations. A print-ready compressed file may be generated by raster image processing of a job description file associated with a rendering job provided by a digital front end. The expansion time with respect to one or more expansion processes may be predicted by a linear equation during assembly of the compressed file. The linear equation may be formulated based on measured compression statistics that relate to profile data within the compressed file. The total expansion time with respect to the rendering job may be then computed by summing the results of the linear equations. The expansion time to perform the print-time imaging operations may be compared with an available time based on an image output terminal speed to improve performance of raster image processing.
摘要翻译： 一种用于预测执行打印时成像操作所需的扩展难度和扩展时间的方法和系统。 可以通过与由数字前端提供的呈现作业相关联的作业描述文件的光栅图像处理来生成打印就绪压缩文件。 相对于一个或多个扩展过程的扩展时间可以通过在压缩文件的组装期间的线性方程来预测。 可以基于与压缩文件内的简档数据相关的测量的压缩统计量来形成线性方程式。 然后可以通过对线性方程的结果相加来计算相对于再现作业的总扩展时间。 可以基于图像输出端速度将执行打印时成像操作的扩展时间与可用时间进行比较，以提高光栅图像处理的性能。
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3.发明授权公开(公告)号：US07218784B1
公开(公告)日：2007-05-15
申请号：US09562143
申请日：2000-05-01
IPC分类号： G06K9/36
CPC分类号： H04N1/41 , H04N19/12 , H04N19/126 , H04N19/14 , H04N19/176 , H04N19/60
摘要： This invention relates to a method and apparatus for controlling image quality and compression ratios in image segmentation. More particularly, the invention is directed to an image segmenting system and method that analyzes and classifies pixel blocks of an image to determine the manner in which the image block should be compressed, e.g. with a lossy or a lossless technique. This approach, which assumes no apriori knowledge of the any specific region of the image, results in effective use of the various known compression techniques and provides improved overall compression ratios and image quality.
摘要翻译： 本发明涉及一种用于控制图像分割中的图像质量和压缩比的方法和装置。 更具体地，本发明涉及一种图像分割系统和方法，其分析和分类图像的像素块以确定图像块应被压缩的方式，例如， 有损或无损技术。 这种不考虑图像的任何特定区域的先验知识的方法导致有效地利用各种已知的压缩技术，并提供改进的总体压缩比和图像质量。
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公开(公告)号：US06650261B2
公开(公告)日：2003-11-18
申请号：US10175242
申请日：2002-06-18
IPC分类号： H03M700
CPC分类号： G06T9/005 , H03M7/3086
摘要： An improved sliding window dictionary-based compression method limits the data within the sliding window searched to data strings occurring at each discrete match location within a plurality of predefined discrete match locations, the plurality of predefined discrete match locations comprising a set of non-continuous data positions within the window of data.
摘要翻译： 改进的基于滑动窗口字典的压缩方法将搜索到的滑动窗口内的数据限制在多个预定离散匹配位置内的每个离散匹配位置处出现的数据串，所述多个预定离散匹配位置包括一组非连续数据 数据窗口内的位置。
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公开(公告)号：US5771060A
公开(公告)日：1998-06-23
申请号：US472154
申请日：1995-06-07
申请人： William E. Nelson
发明人： William E. Nelson
CPC分类号： H04N1/40031 , B41J2/465 , B41J2/52 , G06K15/1257 , H04N1/00015 , H04N1/00031 , H04N1/00047 , H04N1/0005 , H04N1/00063 , H04N1/00082 , H04N1/04 , H04N1/40025 , H04N1/19 , H04N2201/0458
摘要： Higher quality printing is difficult in implementation in spatial light modulator printers. The two major problems are accomplishing gray scale within the line time constraints, and eliminating staircasing artifacts within the images printed (81). It can be improved by using an alternate way of resetting cells on the spatial light modulator when data is being loaded onto the cells, timing delay (86), horizontal offset (84), and differently sized pixels (80, 82).
摘要翻译： 在空间光调制器打印机中实现更高质量的打印是困难的。 两个主要问题是在线路时间限制内实现灰度级，并消除了印刷图像中的阶梯伪影（81）。 当数据被加载到单元，定时延迟（86），水平偏移（84）和不同大小的像素（80,82）时，可以通过使用在空间光调制器上复位单元的替代方式来改进。
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公开(公告)号：US5490009A
公开(公告)日：1996-02-06
申请号：US332023
申请日：1994-10-31
CPC分类号： H04N5/7458 , G02B26/0841
摘要： A display system (20) that uses multiple SLMs (25) to enhance horizontal or vertical resolution, or both. For example, to approximate a two-fold increase in horizontal resolution, the input data is sampled at a doubled rate, and each SLM (25) receives every other sample. Each SLM (25) generates an image, and the two images are partially superposed with a horizontal offset and simultaneously displayed. The resulting output image has a perceived resolution that approximates that of an image generated by an SLM with twice as many pixels per row.
摘要翻译： 一种使用多个SLM（25）来增强水平或垂直分辨率或两者的显示系统（20）。 例如，为了近似水平分辨率的两倍增加，输入数据以双倍速率进行采样，并且每个SLM（25）接收每隔一个采样。 每个SLM（25）生成图像，并且两个图像被部分地叠加有水平偏移并且同时显示。 所得到的输出图像具有近似于由SLM生成的图像的感知分辨率，每行具有两倍的像素。
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公开(公告)号：US5330878A
公开(公告)日：1994-07-19
申请号：US47254
申请日：1993-04-14
申请人： William E. Nelson
发明人： William E. Nelson
IPC分类号： G03F7/20 , H01L21/027 , H01L21/30 , H05K3/00 , G03C5/00
CPC分类号： G03F7/70283 , G03F7/2057 , G03F7/70291 , H05K3/0082
摘要： A device for patterning an imaging member (46) is provided. The device comprises a light source (24) which emits light rays (26). Light rays (26) pass through a collimator lens (28) to collimate the light rays (30). The light then strikes a spatial light modulator (32) which is controlled by a computer (40) to reflect the light (42). The light passes through an imaging lens (44) to magnify the pattern for striking imaging member (46). Imaging member (46) is thus patterned by changing modulator (32) by computer (40).
摘要翻译： 提供了用于图案化成像构件（46）的装置。 该装置包括发射光线（26）的光源（24）。 光线（26）穿过准直透镜（28）以准直光线（30）。 然后光照射由计算机（40）控制以反射光（42）的空间光调制器（32）。 光通过成像透镜（44）以放大用于撞击成像构件（46）的图案。 因此，通过用计算机（40）改变调制器（32），成像构件（46）被图案化。
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公开(公告)号：US5312779A
公开(公告)日：1994-05-17
申请号：US888774
申请日：1992-05-26
申请人： William E. Nelson
发明人： William E. Nelson
IPC分类号： G02B26/08 , G02F1/1335 , H01L21/302
CPC分类号： G02B26/0841 , G02F1/133516
摘要： A semiconductor device comprises a plurality of groups of colored cells controllable by electronic circuitry. Each group of colored cells absorb or reflect specified wavelengths of visible light. The electronic signals control the pathways on which each individual cell reflects incident light. A first process for manufacturing such a color spatial light modulator ("SLM") includes aligning a dye-bearing substrate over the spatial light modulator and causing specified portions of the dye to sublimate off of the substrate and condense onto particular cell elements of the spatial light modulator. A second process for producing a colored spatial light modulator places an electrostatic charge in a dye cloud and introduces the charged cloud to the SLM. The dye migrates to those selected cells containing an opposite electrical charge.
摘要翻译： 半导体器件包括可由电子电路控制的多组彩色单元。 每组彩色细胞吸收或反射指定的可见光波长。 电子信号控制各个单元反射入射光的路径。 用于制造这种颜色空间光调制器（“SLM”）的第一种方法包括将染料承载衬底对准空间光调制器并使染料的指定部分从衬底升华并冷凝到空间上的特定细胞元件上 光调制器。 用于产生有色空间光调制器的第二种方法是将静电电荷置于染料云中，并将带电云引入SLM。 染料迁移到含有相反电荷的那些选定的细胞。
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公开(公告)号：US5101236A
公开(公告)日：1992-03-31
申请号：US454205
申请日：1989-12-21
IPC分类号： B41J2/525 , G02B26/08 , G02B27/09 , G03G15/04 , G03G15/043 , G03G15/22 , G06K15/12 , H04N1/23
CPC分类号： G03G15/04 , B41J2/465 , G02B26/0816 , G06K15/12 , G06K15/1252 , G03G15/0435
摘要： There is disclosed a light energy management system for use in conjunction with, in one embodiment, the exposure unit of a xerographic reproduction system. The light management system serves to funnel the unmodulated light for proper impact on a modulating device and to maintain the dark effect of the device when in the unmodulated mode. Light baffles are used for this purpose, some of which are formed as a series of angular steps designed to eliminate unwanted light along the longitudinal axis of the modulated light path. The angular step, in one embodiment, takes the shape of a semi-circular bee thorax. The modulated light path includes a light focus lens and a pair of mirrors for sending the modulated light pulses to the reproduction process surface.
摘要翻译： 公开了一种在一个实施例中与静电复印系统的曝光单元结合使用的光能管理系统。 光管理系统用于对未调制的光进行漏斗，以适当地影响调制装置，并且在未调制模式下保持装置的暗影响。 光挡板用于此目的，其中一些形成为被设计为消除沿调制光路的纵向轴线的不需要的光的一系列角度台阶。 在一个实施例中，角阶段采取半圆形的蜂胸部的形状。 调制光路包括光聚焦透镜和用于将调制的光脉冲发送到再现处理表面的一对反射镜。
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10.发明授权Method for compressing digital documents with control of image quality and compression rate 有权用图像质量和压缩率控制压缩数字文档的方法公开(公告)号：US06731814B2
公开(公告)日：2004-05-04
申请号：US09727824
申请日：2000-12-04
申请人： Norman W. Zeck , Peter A. Crean , Sang-Chul Kang , David E. Rumph , George L. Eldridge , William E. Nelson
发明人： Norman W. Zeck , Peter A. Crean , Sang-Chul Kang , David E. Rumph , George L. Eldridge , William E. Nelson
IPC分类号： G06K936
摘要： A method and apparatus for compressing and decompressing electronic documents, with maximum intradocument independence, and maximum flexibility in optimization of compression modes. The method includes receiving documents containing unknown combinations of a plural data types, including combinations of scanned data, computer rendered data, compressed data and/or rendering tags; dividing the received image into strips of blocks determining from the image itself, which data types are present in each block; compressing data of each data type present in each block with a compression method optimized for its data type. Scanned data may be further segmented into plural scanned data types, where each data type is compressed in said compressing data step with a compression method optimized for said scanned image data type. If the received data type is compressed data, the process may include the additional functions of determining a compression ratio thereof, and accepting the compressed data for use as, or decompressing and recompressing the data, based on acceptability of said compression ration determination. An instruction set is generated that allows detailed decompression instruction data and image data to be combined with transmitted compressed data. A data structure is shown, which segregates data types and instruction data, and allows for block to block and strip to strip processing independence.
摘要翻译： 用于压缩和解压缩电子文档的方法和装置，具有最大的文献内独立性，并且在压缩模式的优化中具有最大的灵活性。 该方法包括接收包含多种数据类型的未知组合的文档，包括扫描数据，计算机渲染数据，压缩数据和/或渲染标签的组合; 将接收的图像划分为从图像本身确定的块的块，每个块中存在哪些数据类型; 使用为其数据类型优化的压缩方法压缩每个块中存在的每种数据类型的数据。 扫描的数据可以进一步分割成多个扫描数据类型，其中每个数据类型在所述压缩数据步骤中被压缩，并以针对所述扫描图像数据类型优化的压缩方法进行压缩。 如果接收到的数据类型是压缩数据，则处理可以包括确定其压缩比的附加功能，并且基于所述压缩比率确定的可接受性，接受压缩数据以用作数据或解压缩和重新压缩数据。 生成指令集，其允许将详细的解压缩指令数据和图像数据与传送的压缩数据组合。 示出了数据结构，其分隔数据类型和指令数据，并允许块阻止和剥离以处理独立的处理。
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